I remember a very long time ago, way before Rush met Marta, he said on the air he did not make a good husband because he was too selfish. This may still be the case. It may be that he excels in his career but in marriage he is just star crossed. Who knows or cares? It is his private grief and one he will have to work out alone. I agree with those who do not see this as a moral issue. If it is, it is between he and God.
All in all, it's just another brick in the wall.